Atlantic Alumina, Gramercy Operations

Brownfield

Gramercy, St James, Louisiana · Atalco Gramercy LLC

Legacy capacity

Atlantic Alumina, Gramercy Operations is a natural gas plant in Gramercy, St James, Louisiana, retired 2010-02-01. Retired generation sites are among the most attractive datacenter redevelopment targets: the existing interconnection was sized for roughly 32 MW of generation, so the grid hookup, transmission rights, and often cooling-water access are already in place — collapsing the speed-to-power timeline versus a greenfield build.

Former use & capacity

Former usenatural gas plant

Site typeretired_plant

Existing capacity32 MW

Retirement date2010-02-01

EIA plant ID#50846

Grid hookup & remediation

Nearest substation1.4 mi

OperatorAtalco Gramercy LLC

Operator address1111 Airline Highway, Gramercy, LA, 70052

Why this site is datacenter-attractive: a natural gas plant of this scale leaves behind a high-capacity grid interconnection that a new load can re-use, frequently shaving years off the interconnection queue. Retired-plant sites also tend to be already zoned for heavy industrial use with established road, rail, and water infrastructure.

Nearby datacenter candidate sites

Scored candidate sites near Atlantic Alumina, Gramercy Operations, ranked by DC Readiness.

Candidate sites near Atlantic Alumina, Gramercy Operations
Site	Type	State	County	Voltage	Capacity	Queue wait	Score
HARELSON	Substation-Adjacent	LA	East Baton Rouge Parish	230 kV	300 MW	2.8 yrs	62.0
WEINER	Substation-Adjacent	LA	East Baton Rouge Parish	230 kV	300 MW	2.8 yrs	61.4
JONES CREEK	Substation-Adjacent	LA	East Baton Rouge Parish	230 kV	300 MW	2.8 yrs	61.4
UNKNOWN112511	Substation-Adjacent	LA	Ascension Parish	230 kV	300 MW	2.8 yrs	61.3
UNKNOWN112505	Substation-Adjacent	LA	East Baton Rouge Parish	230 kV	300 MW	2.8 yrs	61.1
UNKNOWN115491	Substation-Adjacent	LA	Ascension Parish	230 kV	300 MW	2.8 yrs	60.8
WATERFORD 500KV	Substation-Adjacent	LA	St. Charles Parish	500 kV	1,000 MW	2.8 yrs	60.4
UNKNOWN112514	Substation-Adjacent	LA	Ascension Parish	230 kV	300 MW	2.8 yrs	60.4

Nearby internet exchanges

Cogent New OrleansNew Orleans, LA · 5 networks
DartPoints Baton Rouge, LA - BTR1Baton Rouge, LA · 4 networks
Venyu BTR1Baton Rouge, LA · 2 networks
DartPoints Baton Rouge, LA - BTR2Baton Rouge, LA · 1 networks

See all datacenter sites in Louisiana →

Dataset updated June 2026. Screening estimates derived from public data sources.

Brownfield attributes are derived from EIA retired-generator and EPA public data. Existing capacity reflects the retired plant's historical nameplate, not deliverable interconnection for a new load. Confirm reusable interconnection rights, remediation status, and site availability with the utility, ISO, and current owner.

Go deeper than the public screen

This page shows a public slice of the GridCensus dataset for Atlantic Alumina, Gramercy Operations, Gramercy, St James, Louisiana. Pro and Enterprise plans unlock the full 164,098-site catalog, raw sub-scores, parcel ownership, interconnection-queue detail, saved searches, and programmatic API access.

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